Question

应用程序在启动时崩溃。 Debug apk工作正常但发布apk正面临这个问题。有人可以帮忙吗？

03-29 10:22:55.725 31420-31420/np.com.drac.ghtweather E/AndroidRuntime: FATAL EXCEPTION: main
    Process: np.com.drac.ghtweather, PID: 31420
    java.lang.RuntimeException: Unable to instantiate application np.com.drac.ghtweather.GHTapp: java.lang.InstantiationException: java.lang.Class<np.com.drac.ghtweather.GHTapp> cannot be instantiated
        at android.app.LoadedApk.makeApplication(LoadedApk.java:977)
        at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6030)
        at android.app.ActivityThread.-wrap1(Unknown Source:0)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1764)
        at android.os.Handler.dispatchMessage(Handler.java:105)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6938)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)
     Caused by: java.lang.InstantiationException: java.lang.Class<np.com.drac.ghtweather.GHTapp> cannot be instantiated
        at java.lang.Class.newInstance(Native Method)
        at android.app.Instrumentation.newApplication(Instrumentation.java:1108)
        at android.app.Instrumentation.newApplication(Instrumentation.java:1093)
        at android.app.LoadedApk.makeApplication(LoadedApk.java:971)
        at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6030) 
        at android.app.ActivityThread.-wrap1(Unknown Source:0) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1764) 
        at android.os.Handler.dispatchMessage(Handler.java:105) 
        at android.os.Looper.loop(Looper.java:164) 
        at android.app.ActivityThread.main(ActivityThread.java:6938) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)

Answer 1

要在较新的Android工作室版本中构建release apk，首先禁用即时运行然后选择 “构建” - ＆gt;“构建APK（s）”选项，然后构建您的apk以使其正常运行。

这是构建apk的正确方法。试试这个，让我知道它是否有效。执行此操作后，android studio会提示您指向apk的文件位置的链接。

Answer 2

检查发布模式

 if( BuildConfig.BUILD_TYPE.equalsIgnoreCase("release")) {

 }

检查调试模式

 if( BuildConfig.BUILD_TYPE.equalsIgnoreCase("debug")) {

 }

或

检查你的menifest xml

<application android:debuggable="true" android:name=".YourApplication" android:allowBackup="true" android:icon="@mipmap/your_icon" android:label="@string/app_name" android:theme="@style/AppTheme"/>

或

buildTypes { release { release { minifyEnabled true shrinkResources true proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } }

尝试此代码我遇到了同样的问题，这是我解决问题的解决方案，希望对您有所帮助。

InstantiationException仅在发布apk中

2 个答案: